# Natural Logarithm of 1/2 > [Natural logarithm][@stdlib/math/base/special/ln] of `1/2`.

## Usage ```javascript var LN_HALF = require( '@stdlib/constants/float64/ln-half' ); ``` #### LN_HALF [Natural logarithm][@stdlib/math/base/special/ln] of `1/2`. ```javascript var bool = ( LN_HALF === -0.6931471805599453 ); // returns true ```

## Examples ```javascript var LN_HALF = require( '@stdlib/constants/float64/ln-half' ); console.log( LN_HALF ); // => -0.6931471805599453 ```

[@stdlib/math/base/special/ln]: https://www.npmjs.com/package/@stdlib/math-base-special-ln